Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4215594 | Torque responsive speed shift mechanism for power tool | William Workman, Jr. | 1980-08-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4215594 | Torque responsive speed shift mechanism for power tool | William Workman, Jr. | 1980-08-05 |